diff --git a/src_main/io_devices/pifile.cpp b/src_main/io_devices/pifile.cpp
index 8031d170..649453d7 100755
--- a/src_main/io_devices/pifile.cpp
+++ b/src_main/io_devices/pifile.cpp
@@ -20,11 +20,6 @@
 #include "pifile.h"
 #include "pidir.h"
 #include "pitime_win.h"
-//#ifdef ESP_PLATFORM
-//extern "C" {
-//#  include "esp_spiffs.h"
-//}
-//#endif
 #ifdef WINDOWS
 #  undef S_IFDIR
 #  undef S_IFREG
@@ -729,7 +724,6 @@ bool PIFile::applyFileInfo(const PIString & path, const PIFile::FileInfo & info)
 	}
 	CloseHandle(hFile);
 #else
-//#ifndef ESP_PLATFORM
 	int mode(0);
 	if (info.perm_user.read)   mode |= S_IRUSR;
 	if (info.perm_user.write)  mode |= S_IWUSR;
@@ -759,7 +753,6 @@ bool PIFile::applyFileInfo(const PIString & path, const PIFile::FileInfo & info)
 		piCout << "[PIFile] applyFileInfo: \"utimes\" error:" << errorString();
 		//return false;
 	}
-//#endif
 #endif
 	return true;
 }
diff --git a/src_main/system/pisysteminfo.cpp b/src_main/system/pisysteminfo.cpp
index 2fb15ff3..dda2995b 100644
--- a/src_main/system/pisysteminfo.cpp
+++ b/src_main/system/pisysteminfo.cpp
@@ -20,7 +20,6 @@
 #include "piincludes_p.h"
 
 #ifdef ESP_PLATFORM
-#  include "esp_heap_caps.h"
 #  include "esp_system.h"
 #  include "esp_spi_flash.h"
 #endif
@@ -37,35 +36,6 @@ PISystemInfo * PISystemInfo::instance() {
 }
 
 
-ullong PISystemInfo::totalRAM() {
-#ifdef ESP_PLATFORM
-	multi_heap_info_t heap_info;
-	memset(&heap_info, 0, sizeof(multi_heap_info_t));
-	heap_caps_get_info(&heap_info, MALLOC_CAP_8BIT);
-	return heap_info.total_allocated_bytes + heap_info.total_free_bytes;
-#endif
-}
-
-
-ullong PISystemInfo::freeRAM() {
-#ifdef ESP_PLATFORM
-	multi_heap_info_t heap_info;
-	memset(&heap_info, 0, sizeof(multi_heap_info_t));
-	heap_caps_get_info(&heap_info, MALLOC_CAP_8BIT);
-	return heap_info.total_free_bytes;
-#endif
-}
-
-
-ullong PISystemInfo::usedRAM() {
-#ifdef ESP_PLATFORM
-        multi_heap_info_t heap_info;
-        memset(&heap_info, 0, sizeof(multi_heap_info_t));
-        heap_caps_get_info(&heap_info, MALLOC_CAP_8BIT);
-        return heap_info.total_allocated_bytes;
-#endif
-}
-
 
 PIStringList PISystemInfo::mountRoots() {
 	PIStringList ret;
diff --git a/src_main/system/pisysteminfo.h b/src_main/system/pisysteminfo.h
index 86dc5659..ad691caa 100644
--- a/src_main/system/pisysteminfo.h
+++ b/src_main/system/pisysteminfo.h
@@ -38,7 +38,6 @@ public:
 	};
 
 	PIString ifconfigPath, execCommand, hostname, user, OS_name, OS_version, architecture;
-	ullong RAM_total, RAM_free;
 	PIDateTime execDateTime;
 	int processorsCount;
 	
@@ -46,9 +45,6 @@ public:
 	static PIVector<MountInfo> mountInfo();
 	
 	static PISystemInfo * instance();
-	static ullong totalRAM();
-	static ullong freeRAM();
-	static ullong usedRAM();
 	
 };
 
diff --git a/src_main/system/pisystemmonitor.cpp b/src_main/system/pisystemmonitor.cpp
index 3c7d111a..85dc9337 100755
--- a/src_main/system/pisystemmonitor.cpp
+++ b/src_main/system/pisystemmonitor.cpp
@@ -32,6 +32,9 @@
 #  include <libproc.h>
 #  include <sys/proc_info.h>
 #endif
+#ifdef ESP_PLATFORM
+#  include "esp_heap_caps.h"
+#endif
 
 
 #ifndef FREERTOS
@@ -320,7 +323,9 @@ void PISystemMonitor::run() {
 	lock();
 	cur_ts = cur_tm.values();
 	unlock();
-
+	stat.ram_total = totalRAM();
+	stat.ram_used = usedRAM();
+	stat.ram_free = freeRAM();
 	makeStrings();
 }
 
@@ -390,3 +395,36 @@ float PISystemMonitor::calcThreadUsage(PISystemTime & t_new, PISystemTime & t_ol
 	if (delay_ <= 0) return -1.;
 	return piClampf(100. * ((t_new - t_old).toMilliseconds() / delay_), 0.f, 100.f);
 }
+
+
+ullong PISystemMonitor::totalRAM() {
+#ifdef ESP_PLATFORM
+	multi_heap_info_t heap_info;
+	memset(&heap_info, 0, sizeof(multi_heap_info_t));
+	heap_caps_get_info(&heap_info, MALLOC_CAP_8BIT);
+	return heap_info.total_allocated_bytes + heap_info.total_free_bytes;
+#endif
+	return 0;
+}
+
+
+ullong PISystemMonitor::freeRAM() {
+#ifdef ESP_PLATFORM
+	multi_heap_info_t heap_info;
+	memset(&heap_info, 0, sizeof(multi_heap_info_t));
+	heap_caps_get_info(&heap_info, MALLOC_CAP_8BIT);
+	return heap_info.total_free_bytes;
+#endif
+	return 0;
+}
+
+
+ullong PISystemMonitor::usedRAM() {
+#ifdef ESP_PLATFORM
+	multi_heap_info_t heap_info;
+	memset(&heap_info, 0, sizeof(multi_heap_info_t));
+	heap_caps_get_info(&heap_info, MALLOC_CAP_8BIT);
+	return heap_info.total_allocated_bytes;
+#endif
+	return 0;
+}
diff --git a/src_main/system/pisystemmonitor.h b/src_main/system/pisystemmonitor.h
index 68212d5a..26537355 100755
--- a/src_main/system/pisystemmonitor.h
+++ b/src_main/system/pisystemmonitor.h
@@ -40,11 +40,14 @@ public:
 		int session_ID;
 		int priority;
 		int threads;
-		ulong physical_memsize;
-		ulong resident_memsize;
-		ulong share_memsize;
-		ulong virtual_memsize;
-		ulong data_memsize;
+		ullong physical_memsize;
+		ullong resident_memsize;
+		ullong share_memsize;
+		ullong virtual_memsize;
+		ullong data_memsize;
+		ullong ram_total;
+		ullong ram_free;
+		ullong ram_used;
 		PIString physical_memsize_readable;
 		PIString resident_memsize_readable;
 		PIString share_memsize_readable;
@@ -80,12 +83,18 @@ public:
 	PIVector<ThreadStats> threadsStatistic() const;
 	void setStatistic(const ProcessStats & s) {stat = s; makeStrings();}
 
+	static ullong totalRAM();
+	static ullong freeRAM();
+	static ullong usedRAM();
+
+
 private:
 	void run();
 	void makeStrings();
 	void gatherThread(llong id);
 	float calcThreadUsage(PISystemTime & t_new, PISystemTime & t_old);
 
+
 	ProcessStats stat;
 	PIVector<ThreadStats> cur_ts;
 	PIMap<llong, ThreadStats> last_tm, cur_tm;